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Finding the Fourth Proportional to 647,766.70, 970,337.85 and 366,955.90

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Solution

The fourth proportional to 647,766.70, 970,337.85 and 366,955.90 is: 549,690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,766.70 : 970,337.85 = 366,955.90 : x
  2. Step 2: Convert to fraction form
    647,766.70/970,337.85 = 366,955.90/x
  3. Step 3: Cross multiply
    647,766.70x = 970,337.85 × 366,955.90
  4. Step 4: Simplify right side
    647,766.70x = 356,071,199,050.82
  5. Step 5: Solve for x
    x = 356,071,199,050.82/647,766.70
  6. Step 6: Final answer
    x = 549,690.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.